In 2008, Xia Ye receives a mysterious package deal from the Put up Workplace of the Future, which comprises audio cassettes from the late 1990s and an outdated cassette participant. She listens to them on the practice to Qingdao and hears the voice of the 17-year-old Ke Da. Again within the sizzling summer time of 1997, Ke Da had fallen for Xia Ye throughout their senior yr at highschool, and the 2 had expressed their emotions to one another through audio cassettes. Li Fusheng, a man who Ke Da met at swimming lessons, runs the Put up Workplace for the longer term, accepting messages for the residing or the useless to be delivered someday sooner or later. He believed that the useless reside on on the Centre of the World, the place they meet due to love.